Winner
Data from Amazon and official Shelly and Zemismart sites.
2026 verdict
Shelly GAS (LPG) has the better all-around case than Zemismart ZM-GA100 Zigbee Gas Detector in 2026, starting with integrations and valve Shut-off. It has the clearer edge on integrations and valve Shut-off, and it stays ahead on its broader overall balance. Choose Zemismart ZM-GA100 Zigbee Gas Detector only if price and alerts matter more to you than the broader advantage from Shelly GAS (LPG). Overall, Shelly GAS (LPG) makes more sense for most people.
| Feature | Shelly GAS (LPG) | Zemismart ZM-GA100 Zigbee Gas Detector | Winner |
|---|---|---|---|
| Price | $69.99 | $26.00 | Zemismart ZM-GA100 Zigbee Gas Detector |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Home Assistant | Shelly GAS (LPG) |
| Alerts | App Notifications, Fault Alerts | App Notifications, Voice Alerts, Low Battery Alerts | Zemismart ZM-GA100 Zigbee Gas Detector |
| Valve Shut-off | YES | NO | Shelly GAS (LPG) |
| Connectivity | 2.4 GHz WiFi | Zigbee | Tie |
| Detection | LPG & Propane, Concentration Reading | Natural Gas, Concentration Reading | Tie |
| Digital Display | NO | NO | Tie |
| Interconnect | NO | NO | Tie |
Winner
$69.99
- + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
- + Valve Shut-off: YES
- - Price: $69.99 vs $26.00
- - Alerts: App Notifications, Fault Alerts vs App Notifications, Voice Alerts, Low Battery Alerts
30% OFF
$26.00
$37.14
- + Price: $26.00
- + Alerts: App Notifications, Voice Alerts, Low Battery Alerts
- - Integrations: Home Assistant vs Google Home, Alexa, Samsung SmartThings, Home Assistant
- - Valve Shut-off: NO vs YES
Frequently Asked Questions
Which is better overall: Shelly GAS (LPG) or Zemismart ZM-GA100 Zigbee Gas Detector?
Shelly GAS (LPG) has the stronger overall profile in this comparison, especially for integrations and valve Shut-off.
What is the biggest difference between Shelly GAS (LPG) and Zemismart ZM-GA100 Zigbee Gas Detector?
Price is one of the clearest differences: Shelly GAS (LPG) lists $69.99, while Zemismart ZM-GA100 Zigbee Gas Detector lists $26.00.
Which one looks better on price?
Shelly GAS (LPG) is listed at $69.99, while Zemismart ZM-GA100 Zigbee Gas Detector is listed at $26.00. Zemismart ZM-GA100 Zigbee Gas Detector (better spec).
Who should buy Shelly GAS (LPG)?
Choose Shelly GAS (LPG) if your priority is integrations and valve Shut-off and that matters more than price.
Who should buy Zemismart ZM-GA100 Zigbee Gas Detector?
Choose Zemismart ZM-GA100 Zigbee Gas Detector if your priority is price and alerts and that matters more than integrations.
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